nanog mailing list archives

Re: YouTube IP Hijacking


From: Jim Mercer <jim () reptiles org>
Date: Mon, 25 Feb 2008 04:17:54 -0500


On Mon, Feb 25, 2008 at 09:13:23AM +0000, Alexander Harrowell wrote:
Interesting that (according to Renesys) BT reconnected about 500 networks in
Pakistan after the big fibre cut. I wonder if there's any data around that
would tell us who filters and who doesn't?

based on my experience of routing (and de-routing) my own legacy space as
well as some RIPE space through PTCL, i know they have procedures in place to
restrict what their customers can send to them, so it makes sense that they
have a clue as to how to control what they send out.

probably fat fingers, and probably fat wobbly fingers in a rush to comply with
a government directive.


On Mon, Feb 25, 2008 at 9:02 AM, Jim Mercer <jim () reptiles org> wrote:



having built an ISP or two in pakistan, PTCL (Pakistan Telecom) is not the
sole provider of bandwidth to the country, although it likely carries the
bulk of traffic to the country.

operationally, there are a number of jurisdictions which filter content
and connectivity on a variety of basis.

adjusting the BGP announcements is a fairly quick and sure way to hobble
connectivity to specific content.  although, it is quickly bypassed by
shifting the content to other addresses and domain names.

i'm sure that this was an accidental leakage, and that appropriate
corrections
were/are taken in due course.

--
Jim Mercer        jim () reptiles org        +971 55 410-5633
"I'm Prime Minister of Canada, I live here and I'm going to take a leak."
  - Lester Pearson in 1967, during a meeting between himself and
   President Lyndon Johnson, whose Secret Service detail had taken over
   Pearson's cottage retreat.  At one point, a Johnson guard asked
   Pearson, "Who are you and where are you going?"


-- 
Jim Mercer        jim () reptiles org        +971 55 410-5633
"I'm Prime Minister of Canada, I live here and I'm going to take a leak."
   - Lester Pearson in 1967, during a meeting between himself and
    President Lyndon Johnson, whose Secret Service detail had taken over
    Pearson's cottage retreat.  At one point, a Johnson guard asked
    Pearson, "Who are you and where are you going?"


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